3(-5) + 4(2)
= -15 + 8
= -7
Step-by-step explanation:
a)82km into miles
Sol'n
Here,
km=82=82000miles
m=?
Now,
Miles =km×1000
=82×1000
=82000
Therefore,82000m.
Answer:
Mean = 3.4
Variance = 1.088
Standard deviation = 1.0431
Step-by-step explanation:

The mean of a binomial distribution with parameters N (the number of trials) and p (the probability of success for each trial) is 
Thus,

The variance of the binomial distribution is
, where
is the variance of the binomial distribution, so

The standard deviation
is the square root of the variance
so

A: number of nonfiction books
b: number of fiction books
a+b=2000
a=3b
b=500
a=1500
Answer:
C {-2 1/6, 1 5/6}
Step-by-step explanation:
This will solve your answer